Fabric softener sheets repel gnats: Scientists prove .
Do dryer sheets repel pests? According to some university studies, the answer is yes and no. That is, some dryer sheets do have characteristics that repel some insects. The bugs that are theoretically most likely to shy away from the dryer sheets are certain mites, food-infesting beetles, and weevils, German cockroaches, and, according to one .How Does Citronella Repel Mosquitoes? Credit: Monica Fecke/Moment Open/Getty Images The National Pesticide Information Center explains that citronella repels mosquitoes by masking scents that mosquitoes are naturally attracted to, which in turn makes it difficult for mosquitoes .